Sutro Tower and a layer of fog viewed from Corona Heights Park in San Francisco, USA.
A ride down on the gleaming aerial tram towards the Willamette River is one part of the 4T Trail loop in Portland, Oregon, USA.
From atop Council Crest Park, two cyclists admire the view of downtown Portland, Oregon, USA.
As the sun sets, the lights come on in Zacatecas, Mexico.
Nestled between mountains is Centro Histórico, the historical district, of Guanajuanto, Mexico.